"Will Hand" wrote in message
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"John Hall" wrote in message
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In article ,
Western .Sky writes:
http://www.wzkarten3.de/pics/Recm2401.gif

and whats that to N.E?

Yes, I've just been looking at that. Whether that anticyclone will
subsequently develop enough to bring cold weather into the UK is
unclear. The ensemble isn't out yet, but it will be interesting to see
if it supports the operational run. Of course it's only one run. It
could be the first sign of a change, or it could be something that has
vanished by the next run. The latter is probably rather more likely than
the former at this stage.

I really hesitate to say this, but I will, the stratosphere is starting to
warm again strongly high up and that will slow down the westerlies if it
penetrates lower through breaking gravity waves. The ECM could be picking
up on this allowing the westerlies to back dragging up low ertel potential
vorticity air northwards and building pressure over Scandinavia. Of more
interest maybe is the the strong baroclinic zone developing next week near
Newfoundland with 850 hPa ranging from -30C to +10c over a short distance!

Will

Oops breaking Rossby waves of course, not gravity waves - silly me!

Will
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